[LAU] Realtime latency kernel testing

[Gabriel M. Beddingfield]

On Fri, 7 Jan 2011, Robin Gareus wrote:

>> I knew _someone_ would chime in about 23ms being "high latency."  :-)
>
> LOL, but it is.
>
> As far as I'm concerned personally, when using the computer as
> effect-rack playing guitar or bass:
> latencies between 10 and 20ms are the worst!

OK... Yes, in this use case.  There's a lot of use cases 
where this is acceptable.

>> FWIW, several popular apps (esp. those doing Fourier Transforms, like
>> time-stretchers) will not work reliably at <256 frames/period.
>
> Would you care to enlighten us which popular apps that are?
> 'fmit' for example uses FTT and works just fine at 32fpp.

Before I FUD someone else's application... a perfect example 
is StretchPlayer (using RubberBand).  I can't get it to be 
RT-safe at <256... and it's marginal at 256.

Maybe I didn't configure it right...  ??

-gabriel